FILE - In this March 21, 2017 file photo, Rob Delaney poses for photographers upon arrival at the Royal Television Society Programme Awards in London. Delaney has announced the death of his infant son from cancer, memorializing the boy as “smart, funny, and mischievous” in a Facebook post. Henry Delaney was diagnosed with a brain tumor in 2016, according to his father. After surgery to remove the tumor and treatment early last year, the cancer returned in the fall, and Henry died in January. Tim Ireland, FileAP Photos

FILE - In this March 21, 2017 file photo, Rob Delaney poses for photographers upon arrival at the Royal Television Society Programme Awards in London. Delaney has announced the death of his infant son from cancer, memorializing the boy as “smart, funny, and mischievous” in a Facebook post. Henry Delaney was diagnosed with a brain tumor in 2016, according to his father. After surgery to remove the tumor and treatment early last year, the cancer returned in the fall, and Henry died in January. Tim Ireland, FileAP Photos

'Catastrophe' star Rob Delaney's son dies of cancer at age 2

"Catastrophe" star and co-creator Rob Delaney says his infant son has died from cancer.

He memorializes the boy as "smart, funny, and mischievous" in a Facebook post .

Delaney says Henry Delaney was diagnosed with a brain tumor in 2016. After surgery to remove the tumor and treatment early last year, the cancer returned in the fall, and Henry died in January. He was 2½.

Though left with "significant physical disabilities," Henry learned sign language and shuffling from place to place "on his beautiful little bum."

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